[display angle value animated] How to display the value of an angle not using updaters #manim #angle #decimalnumber #loop #noupdater #animate

20220916_angle.py

# https://discord.com/channels/581738731934056449/1020039781276721234/1020193585305505882

from manim import *
class smoother(Scene):
    def construct(self):
        line1 = Line(ORIGIN, RIGHT+(1/3)*DOWN)
        line2 = Line(ORIGIN, UP+(1/3)*LEFT)

        angle = Angle(line1, line2, radius=0.4)

        value = DecimalNumber(angle.get_value(degrees=True), unit="^{\circ}")
        value.next_to(angle, UR)

        self.play(Create(line1), Create(line2), Create(angle), Create(value))     

        for a in np.arange(0,360,1):
            line1.rotate(1*DEGREES, about_point=line1.start)   
            self.remove(angle)
            angle = Angle(line1, line2, radius=0.4)
            self.add(angle)
            value.become(DecimalNumber(angle.get_value(degrees=True), unit="^{\circ}").next_to(angle, UR))
            self.wait(1/10)

        self.wait(2)